““Nature favours nothing in particular. So everything has its advantage and disadvantage as well. What one gains on the one hand one loses on the other. The ox is competent in drawing a heavy cart, but he is absolutely incompetent in catching mice. A shovel is fit for digging, but not for ear-picking. Aeroplanes are good for aviation, but not for navigation. Silkworms feed on mulberry leaves and make silk from it, but they can do nothing with other leaves. Thus everything has its own use or a mission appointed by Nature; and if we take advantage of it, nothing is useless, but if not, all are useless.””
